UFC officials announced Wednesday that light Heavyweight Thiago Silva has failed his UFC on FUEL TV 6 post-fight drug screen. Silva (15-3) tested positive for marijuana metabolites, and has been suspended by the UFC for six months and ordered to take part in a drug rehab program. "Thiago Silva tested positive for marijuana metabolites following his bout at UFC on FUEL TV in Macau," the organization's statement read. "The UFC organization has a strict, consistent policy against the use of any illegal and/or performance-enhancing drugs, stimulants or masking agents.

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